(0 10 8)(1 18 4)(2 7 3)(5 13 11)(6 20 9)(12 16 14)(15 19 17)
ALLOWS (11/8)-SEQUENCE
1: (2 7 20)
(0 10 8)(1 18 4)(2 9 6 20 3)(5 13 11)(7)(12 16 14)(15 19 17)
2: (1 18 4)
(0 10 8)(1)(2 9 6 20 3)(4)(5 13 11)(7)(12 16 14)(15 19 17)(18)
3: (2 9 6)
(0 10 8)(1)(2 20 3)(4)(5 13 11)(6)(7)(9)(12 16 14)(15 19 17)(18)
4: (0 10 8)
(0)(1)(2 20 3)(4)(5 13 11)(6)(7)(8)(9)(10)(12 16 14)(15 19 17)(18)